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The required fields are: Company, Contract, Transaction Type, and Entity.
The "Phased Revenue Recognition (create)" form. The Main tab
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Use the Generate button to create a document an Invoice based on this basisdocument.
Use the Settings button to invoke the Document Settings dialog box that can be used to move the Project or Project Task, or Customer Order field from the document header (the Main tab) as a column to the table on the Revenues and Costs tab or back. The default positions for these objects, you can choose using the Default Values tab on the Quick Menu > Personal Settings form.
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